426780 has 36 divisors (see below), whose sum is σ = 1295112. Its totient is φ = 113760.

The previous prime is 426779. The next prime is 426787. The reversal of 426780 is 87624.

It is a tau number, because it is divible by the number of its divisors (36).

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 426780.

It is not an unprimeable number, because it can be changed into a prime (426787) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1006 + ... + 1365.

2⁴²⁶⁷⁸⁰ is an apocalyptic number.

It is an amenable number.

426780 is an abundant number, since it is smaller than the sum of its proper divisors (868332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

426780 is a wasteful number, since it uses less digits than its factorization.

426780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2386 (or 2381 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 426780 is about 653.2840117437. The cubic root of 426780 is about 75.2895473923.

The spelling of 426780 in words is "four hundred twenty-six thousand, seven hundred eighty".